油脂碱炼水洗废水酶法脱胶研究  

Application of Wastewater from the Alkaline Refining of Oil to the Enzymatic Degumming of Oil

作　　者：魏贞伟[1] 李红玲[2] 王玉[2] 王俊国[1] 于殿宇[2] 

机构地区：[1]吉林工商学院生物工程分院,吉林长春130062 [2]东北农业大学食品学院,黑龙江哈尔滨150030

出　　处：《食品科学》2010年第22期16-19,共4页Food Science

基　　金："十一五"国家科技支撑计划项目(2009BADB9B08)

摘　　要：对油脂碱炼过程中的水洗废水进行循环利用。将油脂碱炼废水进行离心分离,加入毛油中进行水化脱胶,脱出水化磷脂后,进一步进行酶法脱胶,脱出非水化磷脂。通过单因素试验与正交试验,确定废水酶法脱胶的最优工艺条件:水洗废水量2.5%,磷脂酶量30mg/kg,温度55℃,pH4.9,时间3h,搅拌速度90r/min。在最优条件下进行脱胶实验,测定脱胶油中的磷含量为4.9mg/kg,说明水洗废水可以替代软化水用于脱胶工序,每千克成品油可节省热量34～36kJ,提高得率0.2%以上。In this study, the wastewater from the alkaline refining of oil was centrifugated, followed by the supernatant was then added to gross soybean oil for the removal of hydrated phosphatides, followed by further enzymatic degumming for the removal of non-hydrated phosphatides in order to achieve the recycle utilization of the wastewater. Based on single-factor and orthogonal array experiments, the optimal conditions for the enzymatic degumming with the wastewater were determined to be： wastewater loading, 2.5%; phospholipase A1 loading, 30 mg/kg; reaction temperature, 55 ℃; reaction pH, 4.9; and stirring speed, 90 r/min. The soybean oil degummed under the optimal conditions showed a phosphorus content of 4.9 mg/kg. This demonstrates that the wastewater from the alkaline refining of oil can be used as an alternative to softened water for the degumming of gross oil, and 34 36 kJ calorie will be saved during the production of 1 kg of finished oil but the yield will be increased by above 0.2%.

关 键 词：毛油 水洗废水 磷脂酶 脱胶 节省热量 

分 类 号：Q946.5[生物学—植物学]